Fandom: Cabin Pressure
Rating: General Audiences
Warnings: No Archive Warnings Apply
Characters: Arthur Shappey, Carolyn Knapp-Shappey, Douglas Richardson, Martin Crieff
Additional Tags: Post Episode: s03e06 St Petersburg, Family, Protective MJN
Summary: For a prompt. Gordon Shappey may be biologically related to Arthur, but that does not make him family. They have other criteria for that.